A unified framework for semantic shot representation of sports video
Proceedings of the 7th ACM SIGMM international workshop on Multimedia information retrieval
Soccer video analysis by ball, player and referee tracking
SAICSIT '06 Proceedings of the 2006 annual research conference of the South African institute of computer scientists and information technologists on IT research in developing countries
Determining Radius and Position of a Sphere from a Single Catadioptric Image
Journal of Intelligent and Robotic Systems
Ball detection from broadcast soccer videos using static and dynamic features
Journal of Visual Communication and Image Representation
SIFT Based Ball Recognition in Soccer Images
ICISP '08 Proceedings of the 3rd international conference on Image and Signal Processing
Tracking the soccer ball using multiple fixed cameras
Computer Vision and Image Understanding
A three-level scheme for real-time ball tracking
MCAM'07 Proceedings of the 2007 international conference on Multimedia content analysis and mining
Players and ball detection in soccer videos based on color segmentation and shape analysis
MCAM'07 Proceedings of the 2007 international conference on Multimedia content analysis and mining
Playfield and ball detection in soccer video
ISVC'07 Proceedings of the 3rd international conference on Advances in visual computing - Volume Part II
A ROI detection model for soccer video on small display
IITA'09 Proceedings of the 3rd international conference on Intelligent information technology application
Non-goal scene analysis for soccer video
Neurocomputing
Self-calibration based 3d information extraction and application in broadcast soccer video
ACCV'06 Proceedings of the 7th Asian conference on Computer Vision - Volume Part II
Tracking soccer ball in TV broadcast video
ICIAP'05 Proceedings of the 13th international conference on Image Analysis and Processing
Journal of Real-Time Image Processing
A scheme for ball detection and tracking in broadcast soccer video
PCM'05 Proceedings of the 6th Pacific-Rim conference on Advances in Multimedia Information Processing - Volume Part I
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A ball detection and tracking approach in real soccer game is proposed in this paper. In view of difficulties of direct detection, an indirect strategy based on non-ball elimination is applied. We distinguish the ball with a coarse-to-fine process. Game field is firstly extracted and the posterior operations are restricted within it. Then, at the coarse step, some distinct non-ball regions are removed via evaluation of color and shape. And at the fine step, the remained regions are further examined and the optimal one is determined as ball. Afterwards, CONDENSATION algorithm is utilized to track ball. Region optimization is appended to adapt to the ball's size and color/texture changes in response to movement along sequential frames through maximizing the normalization sum of intensity gradient around its perimeter. Moreover, a confidence measure representing the ball region's reliability is presented to guide possible re-detection for continuous tracking. Experiments have demonstrated the method is valid and fast in real soccer sequences.